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Having just completed two ”interdisciplinary” grant proposals… this just cracks me up! #Funny one #xkcd !
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The speed of light is not constant! I show in a recently submitted paper that the speed of light for a beam of light that curves through space (rather than traveling straight) is not a constant value in free space. That is to say that the speed the light that is traveling is a different value everywhere.
The image above shows another peculiar behavior. The intensity of the beam, called an Airy Beam, is in the background with arrows representing the direction of the velocity of the light waves. Look closely.
My calculations show that the light is moving backwards and to the right even though the beam “should” be moving from the bottom of the figure to the top.
WEIRD!
More to come…
(hope the paper is accepted)
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Actually came up w some good physics today!
(photo taken w my droid which is now focusing correctly! yay! click on photo to see how good a mobile phone camera picture can be! 5MP baby!)
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I spoke to soon! This one might be the best!!
[see last post for link to see all stamps with physicists on them!]
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Three scientists who created the technology behind digital photography and helped link the world through fiber-optic networks shared the 2009 Nobel Prize in physics Tuesday. Charles K. Kao was cited for his breakthrough involving the transmission of light in fiber optics while Willard S. Boyle and George E. Smith were honored for inventing an imaging semiconductor circuit known as the CCD sensor.
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Prediction is very difficult, especially about the future.
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I made the CCNY Physics home page (bottom left) for my paper on optical Airy beams being cited as one of the best optics papers of 2008.
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